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Mubarokah Nuriaini Dewi
Universitas Jayabaya
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Other

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Journal : Jurnal Migasian

 1 
Potensi Limbah Cair Organik Sebagai Bahan Baku Biogas Menggunakan Sistem Fermentasi Dua Tahap Mubarokah Nuriaini Dewi; Rinette Visca
Jurnal Migasian Vol 4 No 2 (2020): Jurnal Migasian
Publisher : LPPM Institut Teknologi Petroleum Balongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36601/jurnal-migasian.v4i2.142

Abstract

The high value of COD (Chemical Oxygen Demand) is one of the indicators of the burden of organic substance pollution in the wastewater food flavoring industry. COD values can be lowered by converting to biogas. In this study biogas was made through a two-stage fermentation system. At the first stage organic material is conditioned in an acidic state (pH = 4) with variable fermentation time: 2 days, 4 days, 6 days and 8 days. Then at each time fermented for 18 days at second stages. As a result, the amount of biogas volume produced is the same, namely: 7,5 L. However, the most amount of methane is produced at the time of fermentation phase one for 2 days, namely: 83%. While the lowest value is produced at the time of fermentation phase one for 8 days, namely: 70%. At the time of fermentation phase one for 8 days produced the highest hydrogen composition, namely: 9,023 %. The composition of methane at stage one for 4 days produces a higher value, namely: 81.431% compared to the single stage fermentation system, namely: 78.9 %.
Pemanfaatan Arang Aktif Ampas Kopi Arabika (Coffea arabica) dengan Aktivator Asam Klorida (HCl) dan Asam Fosfat (H3PO4) Sebagai Adsorben Logam Kromin (Cr) pada Limbah Tekstil Dody Guntama; Mubarokah Nuriani Dewi; Lukman Nulhakim; Samuel Armawan Sandi; Audina Trisnaeni; Ayu Lintang
Jurnal Migasian Vol 7 No 1 (2023): Jurnal Migasian
Publisher : LPPM Institut Teknologi Petroleum Balongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36601/jm.v7i1.226

Abstract

Activated charcoal of Arabica coffee grounds with different activators (HCl and H3PO4) has the potential as an adsorber for chromium in artificial textile waste. Coffee grounds can be used as raw material for activated charcoal because it has a fairly high carbon content. Waste is made using Chromic Acid powder with a ratio of 1:10 to Aquadest. The concentrations of HCl and H3PO4 activators used were respectively 0.1 N. Activated charcoal is made by drying coffee grounds for 24 hours and the carbonization process is carried out in a furnace at a temperature of 200 oC. Charcoal formed is activated with HCl and 0.1 N H3PO4 activator for 48 hours. The characteristics tested were ash content, water content, absorption of iodine, and absorption of chromium solution. The chromium absorption test used AAS (Atomic Absorption Spectrophotometry) and SEM-EDX (Scanning Electron Microscope - Energy Dispersive X-Ray) tests. The results showed that Arabica coffee grounds had the potential as chromium adsorbent and the best activator used was HCl with the characteristics of activated charcoal as follows: water content of 8.1175%, ash content of 4.5981%, absorption of iodine of 401.7964 mg /g and the absorption capacity of chromium solution is 800 mg/g.
Co-Authors Abeth Novria Sonjaya Ahmad Mustopa Aji Digdoyo Alvira Liviani Audina Trisnaeni Ayu Lintang Bima Dwi Satriawan Dewi Pujo Ningsih Dody Guntama Dody Guntama Dody Guntama Dody Guntama Erni Azizah Fauzhia Rahmasari Ferra Naidir Gariza Fadha Gilang Lukman Hakim Gilang Lukman Hakim Herliati Herliati Herliati Rahman Ilham Andreansyah Ilham Andreansyah Iqbal Maulana Ismail Marzuki Joko Sulistiyo Junie Suriawati Kamarza Mulia, Kamarza latirah latirah Lukman N Lukman Nulhakim Lukman Nulhakim Lukman Nulhakim Lukman Nulhakim Mardiono Mardiono Marungkil Sinaga Michelle S Sesira Muhammad Farhan Firdaus Muhammad Fauzan Praswasti PDK Wulan, Praswasti PDK Putri Fatmawati Putri Fatmawati Rauzatun Nusyura Rayhan Sahreza Reza Diharja Rinette Visca Rinette Visca Rinette Visca Rinette Visca Rinette Visca Rinette Visca Rizky Perdana Samuel Armawan Sandi Siti Nurcahyati Siti Rahayu Rahmawati Sri Wiji Lestari Visca, Rinette Widodo Wahyu Purwanto Wigayanti Wigayanti Wigayanti Wigayanti Wike Handini Yeti Widyawati Yuswan Muharam